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Provisional Information on Selected Notifiable Diseases in the United States for
Week Ended May 16, 1953

A total of 152 cases of poliomyelitis was reported in the
United States for the current week as compared with 109 (correct-
ed figure) for last week, and 101 for the corresponding week
of last year. Small increases in the incidence over last week
occurred in 22 States, but a relatively large increase was re-
ported in California, where the number of cases rose from 13
last week to 34 for the current week.

Smallpox

EPIDEMIOLOGICAL REPORTS

The diagnosis of smallpox reported in Oklahoma for the week ended April 11 was withdrawn after tests on material from the case, sent to the Communicable Disease Center Laboratory, Atlanta, Georgia, did not reveal smallpox virus.

Dr. W. L. Halverson, California Director of Public Health, has reported a suspect case of smallpox in a Mexican National. The patient arrived in Merced on May 8, having traveled by chartered bus from Mexicali. He was vaccinated on April 20 in Mexico, but had no visible reaction. Onset of symptoms was on May 8. Contents of vesicular lesions are now being tested in 2 laboratories with negative results to date. Contacts of the patient were believed to be limited, and practically all had been vaccinated and are being revaccinated.

Psittacosis

Dr. John R. Pate, District of Columbia Department of Health, reports that a parakeet purchased in a local pet shop on April 20 became sick and died on May 7. Recovery of the psittacosis virus was reported by the Communicable Disease Center Laboratory. The owner of the bird became ill on May 2 with fever, chills, and anorexia. Laboratory tests on the patient are being made. The last case of psittacosis in the District of Columbia was reported in 1941.

Anthrax in animals

According to the monthly report from the Department of Agriculture for April 1953, 21 outbreaks of anthrax in animals occurred in 10 States. Thirty States, the District of Columbia, Hawaii, and Puerto Rico reported that no anthrax outbreaks occurred during April. California reported 1 outbreak in which 27 sheep were lost. As a result of the other outbreaks, 23 cattle and 4 hogs were lost. The source of infection for 10 outbreaks was infected soil; for 3, it was contaminated feed; and for the others, it was not determined.

Infectious hepatitis

Dr. H. Kleinman, Bureau of Indian Affairs Hospital, Red Lake Agency, Minnesota, gives additional information on the outbreak of infectious hepatitis which was summarized in this report for the week ended February 28, 1953. The disease was mild with predominant symptoms of fever, upper abdominal pain, nausea, and vomiting. Bile was present in the urine. All patients complained of lassitude and anorexia. Biliuria was universally present and clinical jaundice usually appeared after fever had subsided. While nearly all cases had epigastric tenderness, it was the exception rather than the rule to find enlarged and tender liver. Bile disappeared from the urine, and jaundice usually cleared

by the end of the second week. In doubtful cases the methylene blue test was applied. Cephalin flocculation was chosen as a liver function test. This was performed in about 10 percent of the cases and always showed a 4+ result.

A total of 80 cases has been reported in 4 villages during the period, October 12, 1952 to March 28, 1953. It is possible that some mild and anicteric cases were not reported because the patients did not seek medical care. The peak incidence was from the middle of December to the middle of January. This is true of the individual villages as well as of the reservation as a whole. Of the total reported, three-fourths of the cases occurred in the villages of Redlake and Redby, which are near each other on the southern shore of Lower Red Lake. In Ponemah, which is on the northern shore of the lake, 17 cases have been reported. It was stated that the people of this village are in closer communication to Redby than each is with the people of Redlake. Two cases occurred in Neptume which is about 50 miles from Red Lake. Indications are that the outbreak was reservation-wide rather than spread from one locality. The source of the infection has not as yet been determined.

Most of the cases (63 percent) occurred in children, ages 6 to 14. One 8-year-old girl in this age group had a relapse. She returned to the hospital 3 weeks after her discharge with a recurrence of adominal pain, anorexia, and biliuria. One case was in an 18-year-old person and only 7 were in adults, The remaining cases were in children under 6, 2 of which were in newborn infants. Jaundice was observed in the infants within the first 12 hours of life. The mother of the first had hepatitis before delivery. The mother of the second gave no history of illness but her cephalin flocculation test was 4+ indicating a possibility of hepatitis which had gone unrecognized.

Gastro-enteritis

Dr. W. H. Y. Smith, Alabama Department of Public Health, reports an outbreak of gastro-enteritis in a high school group of 400 persons who attended a junior-senior banquet. Food for the banquet was purchased, prepared, cooked, and served by a local business man and 5 of his employees, who frequently prepared food for large groups as a hobby, not as a business enterprise. The food was prepared and cooked in an open barbecue shed and transported at 5:45 p.m. by truck about three-fourths of a mile to the auditorium where it was served, with the assistance of 20 sophomores, between 6:30 and 8:30 p.m. In less than an hour after eating, 4 persons became acutely ill with sudden onset of nausea, vomiting, abdominal cramps, headache, vertigo, diarrhea, chills, clamminess, extreme prostration, followed by cramping in the extremities, muşcular soreness, and backache. Other illnesses occurred rapidly with the peak of onset about 3 hours after eating. The total who became ill was approximately 350. An investigation indicated that roast beef was the vehicle of infection. Laboratory examination of food samples revealed that the meat was heavily contaminated with hemolytic Staphylococcus aureus and other organisms. The source of contamination was not determined.

Malaria

Dr. W. L. Halverson reports 9 military cases of malaria in California for the current week. The total number of new cases THE LIBRARY OF THE

MAY 25 1953

UNIVERSITY OF ILLINC

for 1953, associated with the August 1952 outbreak, is now 9, and 1 suspect case which is under investigation.

Leptospiral meningitis

Dr. Halverson reports a case of leptospiral meningitis due

to L. pomona in a worker on a hog farm in California. Agglutination with L. pomona antigen resulted in a 4+ reaction in a dilution of 1:1000, and with L. conicola and L. icterohemorrhagica it was negative.

Table 1. COMPARATIVE DATA FOR CASES OF SPECIFIED NOTIFIABLE DISEASES: UNITED STATES
(Numbers after diseases are category numbers of the Sixth Revision of the International Lists, 1948)

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Symbols.-1 dash [-]: no cases reported; asterisk [+] : disease stated not notifiable; parentheses, [) in total; 3 dashes [---]: data not available.

: data not included

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Table 2. CASES OF SPECIFIED DISEASES WITH COMPARATIVE DATA: UNITED STATES,
EACH DIVISION AND STATE FOR WEEK ENDED MAY 16, 1953

(Numbers under diseases are category numbers of the Sixth Revision of the International Lists, 1948)

HEPATITIS,
INFECTIOUS,

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Table 2. CASES OF SPECIFIED DISEASES WITH COMPARATIVE DATA: UNITED STATES,
EACH DIVISION AND STATE FOR WEEK ENDED MAY 16, 1953-Continued

(Numbers under diseases are category numbers of the Sixth Revision of the International Lists, 1948)

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